Tread portion of a motorcycle tire



FIG. 1 is a perspective view of a motorcycle tire, it being understood that the tread pattern repeats uniformly throughout the circumference of the tire.

FIG. 2 is a front elevation view thereof.

FIG. 3 is a rear elevation view thereof

FIG. 4 is a top plan view thereof

FIG. 5 is a bottom plan view thereof

FIG. 6 is a right side elevation view thereof

FIG. 7 is a left side elevation view thereof; and,

FIG. 8 is an enlarged cross-sectional view thereof taken along line 8—8 in FIG. 2.

The portion of the article shown in broken lines is for illustrative purposes only and forms no part of the claimed design. The dashed-dotted-lines represent the boundaries of the claimed design and form no part thereof 

The ornamental design for a tread portion of a motorcycle tire, as shown and described. 